We want to print letters in all capitals that would also be hollow inside with translucent/transparent material

This way we could put LED lights inside of them to make the sign glow

We're trying to find font that is mono spaced that looks something like found here 

https://www.amazon.com/Colorful-Changing-Alphabet-Christmas-Decoration/dp/B097PFVYDJ/

Any advice how to find such a font?